A BIOPHYSICAL MODEL OF CORN YIELD - INTEGRATING CLIMATIC AND SOCIAL DETERMINANTS

We estimate a model that accounts for both climatic and social determi nants of corn yield in the United States, Climate variables are specif ied for periods that correspond to phenological stages of development. Social determinants include market conditions, technical factors, sca le of production, and the policy environment. The model accounts for t he historical and cross-sectional variation in yield, and the interpre tation of coefficients is consistent with independent analyses of the climatic and social determinants. The hybrid model provides a framewor k for assessing the effect of, and adaptation to, climate change.